The Reytons and Kasabian will also be headlining the Sheffield festival next July
The four shows across the country will see the album played in full
The 2008 album was made during a period when frontman Jason Pierce was hospitalised with double pneumonia
The festival takes place from May 9 to 11 in Wrexham
Amyl And The Sniffers, The Walkmen, Young Fathers and Confidence Man are also on the bill
Spiritualized, Kae Tempest, Robert Glasper and more have been added to the line-up
J Spaceman delivers a dense, orchestrated record that is as solid as it is sprawling
The likes of Spiritualized, Perfume Genius, Moses Sumney, Cate Le Bon, HTRK and KUČKA also feature on the bill for the festival's long-awaited return
The song has been "partly inspired by the protests happening in the US towards the end of the first Lockdown"
Ninth album ‘Everything Was Beautiful’ is out next month
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